<template>
  <div class="main">
    <a-form
      id="formLogin"
      class="user-layout-login"
      ref="formLogin"
      :form="form"
      @submit="handleSubmit"
    >
      <a-tabs
        :activeKey="customActiveKey"
        :tabBarStyle="{ textAlign: 'center', borderBottom: 'unset' }"
        @change="handleTabClick"
      >
        <a-tab-pane key="tab1" tab="账号密码登录">
          <a-alert
            v-if="isLoginError"
            type="error"
            showIcon
            style="margin-bottom: 24px;"
            message="账户或密码错误（admin/ant.design )"
          />
          <a-form-item>
            <a-input
              size="large"
              type="text"
              placeholder="账户: admin"
              v-decorator="[
                'username',
                {rules: [{ required: true, message: '请输入帐户名或邮箱地址' }, { validator: handleUsernameOrEmail }], validateTrigger: 'change'}
              ]"
            >
              <a-icon slot="prefix" type="user" :style="{ color: 'rgba(0,0,0,.25)' }" />
            </a-input>
          </a-form-item>

          <a-form-item>
            <a-input
              size="large"
              type="password"
              autocomplete="false"
              placeholder="密码: admin or ant.design"
              v-decorator="[
                'password',
                {rules: [{ required: true, message: '请输入密码' }], validateTrigger: 'blur'}
              ]"
            >
              <a-icon slot="prefix" type="lock" :style="{ color: 'rgba(0,0,0,.25)' }" />
            </a-input>
          </a-form-item>
        </a-tab-pane>
        <a-tab-pane key="tab2" tab="手机号登录">
          <a-form-item>
            <a-input
              size="large"
              type="text"
              placeholder="手机号"
              v-decorator="['mobile', {rules: [{ required: true, pattern: /^1[34578]\d{9}$/, message: '请输入正确的手机号' }], validateTrigger: 'change'}]"
            >
              <a-icon slot="prefix" type="mobile" :style="{ color: 'rgba(255,255,255)' }" />
            </a-input>
          </a-form-item>

          <a-row :gutter="16">
            <a-col class="gutter-row" :span="16">
              <a-form-item>
                <a-input
                  size="large"
                  type="text"
                  placeholder="验证码"
                  v-decorator="['captcha', {rules: [{ required: true, message: '请输入验证码' }], validateTrigger: 'blur'}]"
                >
                  <a-icon slot="prefix" type="mail" :style="{ color: 'rgba(0,0,0,.25)' }" />
                </a-input>
              </a-form-item>
            </a-col>
            <a-col class="gutter-row" :span="8">
              <a-button
                class="getCaptcha"
                tabindex="-1"
                :disabled="state.smsSendBtn"
                @click.stop.prevent="getCaptcha"
                v-text="!state.smsSendBtn && '获取验证码' || (state.time+' s')"
              ></a-button>
            </a-col>
          </a-row>
        </a-tab-pane>
      </a-tabs>

      <a-form-item>
        <a-checkbox v-decorator="['rememberMe', { valuePropName: 'checked' }]">自动登录</a-checkbox>
        <router-link
          :to="{ name: 'recover', params: { user: 'aaa'} }"
          class="forge-password"
          style="float: right;"
        >忘记密码</router-link>
      </a-form-item>

      <a-form-item style="margin-top:24px">
        <a-button
          size="large"
          type="primary"
          htmlType="submit"
          class="login-button"
          :loading="state.loginBtn"
          :disabled="state.loginBtn"
        >确定</a-button>
      </a-form-item>
    </a-form>

    <two-step-captcha
      v-if="requiredTwoStepCaptcha"
      :visible="stepCaptchaVisible"
      @success="stepCaptchaSuccess"
      @cancel="stepCaptchaCancel"
    ></two-step-captcha>
  </div>
</template>

<script>
import md5 from 'md5'
import TwoStepCaptcha from '@/components/tools/TwoStepCaptcha'
import { mapActions } from 'vuex'
import { timeFix } from '@/utils/util'
import { getSmsCaptcha, get2step } from '@/api/login'

export default {
    components: {
        TwoStepCaptcha
    },
    data() {
        return {
            customActiveKey: 'tab1',
            loginBtn: false,
            // login type: 0 email, 1 username, 2 telephone
            loginType: 0,
            isLoginError: false,
            requiredTwoStepCaptcha: false,
            stepCaptchaVisible: false,
            form: this.$form.createForm(this),
            state: {
                time: 60,
                loginBtn: false,
                // login type: 0 email, 1 username, 2 telephone
                loginType: 0,
                smsSendBtn: false
            }
        }
    },
    created() {
        get2step({})
            .then(res => {
                this.requiredTwoStepCaptcha = res.result.stepCode
            })
            .catch(() => {
                this.requiredTwoStepCaptcha = false
            })
        // this.requiredTwoStepCaptcha = true
    },
    methods: {
        ...mapActions(['Login', 'Logout']),
        // handler
        handleUsernameOrEmail(rule, value, callback) {
            const { state } = this
            const regex = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+((\.[a-zA-Z0-9_-]{2,3}){1,2})$/
            if (regex.test(value)) {
                state.loginType = 0
            } else {
                state.loginType = 1
            }
            callback()
        },
        handleTabClick(key) {
            this.customActiveKey = key
            // this.form.resetFields()
        },
        handleSubmit(e) {
            e.preventDefault()
            const {
                form: { validateFields },
                state,
                customActiveKey,
                Login
            } = this

            state.loginBtn = true

            const validateFieldsKey = customActiveKey === 'tab1' ? ['username', 'password'] : ['mobile', 'captcha']

            validateFields(validateFieldsKey, { force: true }, (err, values) => {
                if (!err) {
                    console.log('login form', values)
                    const loginParams = { ...values }
                    delete loginParams.username
                    loginParams[!state.loginType ? 'email' : 'username'] = values.username
                    loginParams.password = md5(values.password)
                    console.log(loginParams, 'loginParams')
                    Login(loginParams)
                        .then(res => this.loginSuccess(res))
                        .catch(err => this.requestFailed(err))
                        .finally(() => {
                            state.loginBtn = false
                        })
                } else {
                    setTimeout(() => {
                        state.loginBtn = false
                    }, 600)
                }
            })
        },
        getCaptcha(e) {
            e.preventDefault()
            const {
                form: { validateFields },
                state
            } = this

            validateFields(['mobile'], { force: true }, (err, values) => {
                if (!err) {
                    state.smsSendBtn = true

                    const interval = window.setInterval(() => {
                        if (state.time-- <= 0) {
                            state.time = 60
                            state.smsSendBtn = false
                            window.clearInterval(interval)
                        }
                    }, 1000)

                    const hide = this.$message.loading('验证码发送中..', 0)
                    getSmsCaptcha({ mobile: values.mobile })
                        .then(res => {
                            setTimeout(hide, 2500)
                            this.$notification['success']({
                                message: '提示',
                                description: '验证码获取成功，您的验证码为：' + res.result.captcha,
                                duration: 8
                            })
                        })
                        .catch(err => {
                            setTimeout(hide, 1)
                            clearInterval(interval)
                            state.time = 60
                            state.smsSendBtn = false
                            this.requestFailed(err)
                        })
                }
            })
        },
        stepCaptchaSuccess() {
            this.loginSuccess()
        },
        stepCaptchaCancel() {
            this.Logout().then(() => {
                this.loginBtn = false
                this.stepCaptchaVisible = false
            })
        },
        loginSuccess(res) {
            console.log(res)
            // check res.homePage define, set $router.push name res.homePage
            // Why not enter onComplete
            /*
      this.$router.push({ name: 'analysis' }, () => {
        console.log('onComplete')
        this.$notification.success({
          message: '欢迎',
          description: `${timeFix()}，欢迎回来`
        })
      })
      */
            this.$router.push({ path: '/' })
            // 延迟 1 秒显示欢迎信息
            setTimeout(() => {
                this.$notification.success({
                    message: '欢迎',
                    description: `${timeFix()}，欢迎回来`
                })
            }, 1000)
            this.isLoginError = false
        },
        requestFailed(err) {
            this.isLoginError = true
            this.$notification['error']({
                message: '错误',
                description: ((err.response || {}).data || {}).message || '请求出现错误，请稍后再试',
                duration: 4
            })
        }
    }
}
</script>

<style lang="less" scoped>
.user-layout-login {
    label {
        font-size: 14px;
        color: #fff;
    }
    /deep/ .ant-tabs-tab{
      color: #fff;
    }
    /deep/ .ant-tabs-tab-active{
       color: #1890ff;
    }
    /deep/ .ant-tabs-tab:hover{
      color: #1890ff;
    }
    .getCaptcha {
        display: block;
        width: 100%;
        height: 40px;
    }

    .forge-password {
        font-size: 14px;
        color: #fff;
    }

    button.login-button {
        padding: 0 15px;
        font-size: 16px;
        height: 40px;
        width: 100%;
    }

    .user-login-other {
        text-align: left;
        margin-top: 24px;
        line-height: 22px;

        .item-icon {
            font-size: 24px;
            color: #fff;
            margin-left: 16px;
            vertical-align: middle;
            cursor: pointer;
            transition: color 0.3s;

            &:hover {
                color: #1890ff;
            }
        }

        .register {
            float: right;
        }
    }
}
</style>
